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Puzzle 11/07/11: ~ Advanced

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daj95376

Joined: 23 Aug 2008
Posts: 3854

Posted: Mon Jul 11, 2011 11:08 pm Post subject: Puzzle 11/07/11: ~ Advanced

Code:

+-----------------------+
| 7 . . | 8 4 . | . . . |
| . 3 . | 2 9 . | 7 6 . |
| . . . | 7 . . | 1 . . |
|-------+-------+-------|
| 2 5 4 | 6 . 3 | 8 . 9 |
| 9 1 . | . 8 . | . . . |
| . . . | 4 . . | 2 . . |
|-------+-------+-------|
| . 2 3 | 9 . 8 | . . 1 |
| . 8 . | . . . | . . . |
| . . . | 1 . . | 3 . 2 |
+-----------------------+

Play this puzzle online at the Daily Sudoku site

susume

Joined: 13 May 2011
Posts: 36
Location: Southeastern US

Posted: Tue Jul 12, 2011 4:19 am Post subject:

Quote:

UR 56 r79c15 => r9c2<>4
XYZ wing (46)(456)(56) pivot r7c7 => r8c7<>6
(6)r8c3=r8c9-r7c7=r5c7 => r5c3<>6=7

Marty R.

Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA

Posted: Sun Jul 17, 2011 4:25 am Post subject:

Type 1 UR (17); r6c8<>17 Type 2 UR (56-4); r238c1, r9c2<>4 AIC; 6 in r1c2 proves 9 in r8c7; r1c7<>9

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